autoreconf: command not found in Cygwin on Windows
Try install autoconf, automake and libtool. It's under Devel of the Cygwin setup program.
To build MSYS tools, you should use the autotools provided in the MSYS System Builder package:
http://sourceforge.net/project/showfiles.php?group_id=2435&package_id=227249
autoconf-2.61-MSYS-1.0.11-1.tar.bz2 automake-1.10-MSYS-1.0.11-1.tar.bz2 libtool1.5-1.5.25a-20070701-MSYS-1.0.11-1.tar.bz2
Unpack them to the same location you extracted msys package.
I think you have to first solve the errors, since they indicate that you are lacking of some of the essential libraries. For example, the autoconf library...
If you are using Cygwin, you can get apt-cyg by:
lynx -source rawgit.com/transcode-open/apt-cyg/master/apt-cyg > apt-cyginstall apt-cyg /binAfter that, you can use apt-cyg install xxx to install the lacking libraries.